2MASS 0532+8246
Coordinates: 
05h 32m 53.46s, +82° 46′ 46.5″
| Observation data Epoch J2000[1] Equinox J2000[1] | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 05h 32m 53.46s[1] |
| Declination | +82° 46′ 46.5″[1] |
| Characteristics | |
| Spectral type | sdL7[1] |
| Astrometry | |
| Parallax (π) | 37.50 ± 1.70[2] mas |
| Distance | 87 ± 4 ly (27 ± 1 pc) |
| Details | |
| Mass | 0.077 – 0.085 M☉ |
| Metallicity | 0.1 – 0.01 |
| Age | 10–15 Gyr |
| Other designations | |
2MASS J05325346+8246465,[1] 2MASS 0532+8246 | |
| Database references | |
| SIMBAD | data |
2MASS 0532+8246 (full designation 2MASS J05325346+8246465) is possibly the first halo brown dwarf and the first substellar subdwarf.
- Mass: 0.077 – 0.085 MSun
- Age: 10–15 Ga
- Metallicity Z: 0.1 – 0.01 ZSun
References
- The First Substellar Subdwarf? Discovery of a Metal-Poor L Dwarf with Halo Kinematics, Adam J. Burgasser, et al. 2003
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "2MASS J05325346+8246465 -- Brown Dwarf (M<0.08solMass)". SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2012-11-23.
- ↑ Faherty, Jacqueline K.; Burgasser, Adam J.; Walter, Frederick M.; Van der Bliek, Nicole; Shara, Michael M.; Cruz, Kelle L.; West, Andrew A.; Vrba, Frederick J.; Anglada-Escud, Guillem (2012). "The Brown Dwarf Kinematics Project (BDKP). III. Parallaxes for 70 Ultracool Dwarfs". The Astrophysical Journal 752 (1): 56. arXiv:1203.5543. Bibcode:2012ApJ...752...56F. doi:10.1088/0004-637X/752/1/56.
External links
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